[ObjectMapper] mapping on target (reverse-side mapping)

Author: soyuka

src/Symfony/Component/ObjectMapper/ObjectMapper.php

@@ -298,7 +298,7 @@ private function getSourceReflectionClass(object $source, \ReflectionClass $targ
         }
 
         foreach ($refl->getProperties() as $property) {
-            if ($this->metadataFactory->create($source, $property)) {
+            if ($this->metadataFactory->create($source, $property->getName())) {
                 return $refl;
             }
         }

src/Symfony/Component/ObjectMapper/Tests/Fixtures/MapTargetToSource/A.php

@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\ObjectMapper\Tests\Fixtures\MapTargetToSource;
+
+class A
+{
+    public function __construct(public string $source)
+    {
+    }
+}

src/Symfony/Component/ObjectMapper/Tests/Fixtures/MapTargetToSource/B.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\ObjectMapper\Tests\Fixtures\MapTargetToSource;
+
+use Symfony\Component\ObjectMapper\Attribute\Map;
+
+#[Map(source: A::class)]
+class B
+{
+    public function __construct(#[Map(source: 'source')] public string $target)
+    {
+    }
+}

src/Symfony/Component/ObjectMapper/Tests/ObjectMapperTest.php

@@ -38,6 +38,8 @@
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MapStruct\MapStructMapperMetadataFactory;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MapStruct\Source;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MapStruct\Target;
+use Symfony\Component\ObjectMapper\Tests\Fixtures\MapTargetToSource\A as MapTargetToSourceA;
+use Symfony\Component\ObjectMapper\Tests\Fixtures\MapTargetToSource\B as MapTargetToSourceB;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MultipleTargets\A as MultipleTargetsA;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MultipleTargets\C as MultipleTargetsC;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\Recursion\AB;
@@ -262,4 +264,13 @@ public function testTransformToWrongObject()
         $mapper = new ObjectMapper($metadata);
         $mapper->map($u);
     }
+
+    public function testMapTargetToSource()
+    {
+        $a = new MapTargetToSourceA('str');
+        $mapper = new ObjectMapper();
+        $b = $mapper->map($a, MapTargetToSourceB::class);
+        $this->assertInstanceOf(MapTargetToSourceB::class, $b);
+        $this->assertSame('str', $b->target);
+    }
 }